Improvement in seeders and cultivators combined



1-. T. TROWBRIDGE.

Improvement in Seeders and Cultivators Combined. No. 114,232. IPatentedApril25,187l.

UNITED STATES PATENT OFFICE.

JAMES T. TROWBRIDGE, OF AKRON, OHIO.

IMPROVEMENT IN SEEDERS AND CULTIVATORS COMBINED.

Specification forming part of Letters Patent No. 114,232, dated April25, 1871.

To all whom it may concern:

Be it known that I, JAMES T. TROWBRIDGE, of Akron, in the county ofSummit and State of Ohio, have invented certain new and usefulImprovements in Seeders and Cultivators, of which the following is aspecification.

The first part of my invention relates to the construction of the endpiece of the frame to which the axle and front cross-bar are attached,and at the side of which one of the cultivator-arms plays, the objectbeing to allow the axle and front cross-bar to be more firmly anddurably secured than heretofore, and to give freedom to the arm to play.

The second part of the invention relates to the attachment of thecultivator-teeth to the arms.

The invention consists in the construction and arrangement of parts, ashereinafter described and claimed.

Figure l is a side view of my improved end piece for the frame of aseeder and cultivator, showing the manner of securing the axle and cross-bar, and with one cultivator-arm attached. Fig. 2 is a top or plan viewof the same. Fig. 3 is a detached view of a cultivator-tooth, showingthe mode of attachment.

A, Figs. 1 and 2, represents an end piece of a frame, to which isattached the various parts of a seeder and cultivator, which I make ofiron cast with a flange, a, along the upper side and across the frontend to give it sufficient strength. In the front end is a square socketto receive the crossbar B of the frame, the end of which is fitted andsecured firmly in the socket, making a strong and durable corner. On theupper side of the piece A are cast two projections, c c, to form agroove across the face of the piece, into which the axle D is placed,and when bolted together make a firm joint, the lugs or projections c cpreventing any twisting of the axle on the frame, thus making a veryfirm and substantial connection of the axle to the frame of the machine.

E is one of a series of arms, to which cultivator-teeth are attached.These arms are suspended on a rod, f, which passes through the frame.Upon the rear end of the arm E is suspended a swinging arm, 9, to whichthe cultivator-tooth h is attached, being secured as follows: Near theend of the arm is cast or made a socket, 7s, and the end of the arm hasa rivet cast upon it or has a hole through it. The tooth is madediamond-shaped, the lower point being bent forward, and is pierced nearthe center for the rivet, the upper end of the tooth fitting into thesocket k. This socket, together with the rivet, secures the tooth firmlyto the arm, and being very simple requires but one rivet. This rendersit very easily attached or removed for replacement in case of repairs.

Having thus described my improvements, what I desire to secure byLetters Patent is- 1. The metallic end piece, A,wben cast with a flange,a, and lugs c c on the top to receive the axle D, and with a socket forthe end of the front cross-bar, B, all constructed and arrangedsubstantially as and for the purpose set forth.

2. The socket k on the arm 9, for securing the tooth h, as described.

JAMES T. TROVBRIDGE.

lVitnesses J. J. HALL, J. M. PoULsoN.

